.companyInfo  .cover{width: 130px;height:80px;background-color: #000000;color: white;display: none;position: absolute;z-index: 3;
    top: 0;opacity: 0.7;text-align: center;}
.companyInfo  .cover > div{font-size: 16px;height: 32px;margin-top: 24px;}
.companyInfo  .cover > div > div{font-size: 12px;}
.companyInfo:hover  .cover{display:block; }